Atomizer



Marh 14, 1 F. A. SCHNEIDER ATOMIZER Filed Sept. 24, 1930 INVENTOR, FkAN r /7. Sam/51.05;

Patented Mar. 14, 1933 UNITED STATES PATENT OFF-ICE FRANK A. SCHNEIDER, OF SAN FRANCISCO, CALIFORNIA ATOMIZER Application filed September 24; 1930. Serial 1T0. 484,110.

Another object of the invention is to provide a nozzle structure adapted to completely break up and atomize liquid under pressure,

I and which is adapted to be readily assembled onto the discharge end of a conduit for liquids, such as the fuel conduit of an oil burner or the like, the nozzle body itself being held spaced from the inner periphery of the conduit to allow the passing of-the fluid into an intake chamber in the nozzle body, which intake chamber communicates with a whirling chamber within a demountable atomizer in the nozzle body,'an end of said nozzle being formed intoa nozzle disc with a discharge orifice therethrough in operative relation to the whirling chamber; means being provided to removably secure the atomizer member within the nozzle body, and to regulate the communication between the intake chamber and the whirling chamber. 7 7 Other objects and advantages are to provide a nozzle for atomizing and spraying liquids under pressure that will be superior in point of simplicity, inexpensiveness of construction, positiveness of operation, and facilityand convenience in use and general efiiciency.

In this specification and theannexed drawing, the invention is illustrated'in the form considered to be the best, but it is'to be un-' derstood that the invention is not limited to such form, because it may be embodied in other forms; and it is also to be understood that in and by the claims following the description, it is desired to cover the invention in whatsoever form it may be embodied.

The invention is clearly illustrated in the accompanying drawing wherein, V

Fig. 1 is a sectional view of a liquid conduit showing the nozzle assembled in the end thereof. I I

Fig. 2is a longitudinal sectional view of the nozzle and atomizer. v

Fig. 3 is a detail view of the inner atomizer I member of my device.

Fig. 4 is an end view of the inner atomizer member. 7 4 Fig. 5 is a cross sectional view of the entire nozzle and atomizer, the section being taken on the line 5-5. of Fig. 1. i

Fig. 6 is a disassembled view of the ele' f ments of my nozzle construction.

In carrying out my invention Imakeuse of a liquid or fuel conduit-6, the .end of which is externally threaded as at 7. Within the end of the conduit 6 is disposed a cup 8, the

closed end or bottomof which is formed into a nozzle disc 9 integral with the cup 8. The nozzle disc 9 has a central discharge orifice 11 therethrough, the innerend'of which is countersunk into the shape of a conical re- .cess 12, on the inner face'13 of the disc 9.

Radial apertures 1 1 are provided thru the wall of the cup 8 to communicate the conduit 6 with the interior of the cup 8.. The open, rear end of'the cup 8 is provided with internal threads 16. V V 7 Within the cup 8' is disposed an atomizer member 17. The atomizer 17 is smaller in diameter than the inner periphery of the cup 8 to be spaced from said inner periphery of l the cup 8 and form an intake chamber 18.- The opposite apertures 14: discharge into the intake chamber 18.

v. The atomizer 17 is hollow toform a whirling chamber 19 in the free end thereof opposite the recess 12 In order tocause the whirling and breaking up of the liquid in the chamber 19 opposite passages 21, are out into the end of the atomizer 17. Each passage 21 extends from the outside of the inner atomizer 17, tangentially to the whirling chamber 19. The passages 21 in'the body or hub of the atomizer 17 extend to a comparatively large distance from the end thereof, so that communication is established therethrough between the intake chamber 18 and the whirl- 7 ing chamber19;

' A plug 22 is secured into the internally threaded end 16 ofthe cup 80f which the atomizer '17 isan integral concentric part,

whereby the atomizer is pressed against the inner face 13 of the bottom or end disc 9. Centrally disposed in the plug 22 is an adjusting screw 23, threadedly secured into said plug and extending into the interior of the nozzle 17, so as to be adapted to cover the inner ends of the passages 21. By adjusting the position of the set screw 23 the amount of fuel flowing from the intake chamber 18. into the whirling chamber 19 is positively controlled. It is to be noted that the inner shank 24 of the set screw 23 has a sliding fit within the cylindrical hollow chamber 19 in the integral atomizer l7. 1

An annular flange 26 extends outwardly from the outer periphery of the cup. 8, preferably in continuation of the disc 9. The

flan e 26 is in abutment with the end of the con uit and is held in place by an internally threaded ring cap 27, so as to leave the center of the disc 9 uncovered. 1

It is to be noted that the outer periphery of the cup 8 is smaller than the inner periphery of the conduit 6 in which it is used, so that free communication of liquid under pressure is permitted from the conduit6 through the opposed apertures 14: into the intake chamber 18, from which latter the liquid is forced through the passages 21 into the chamber 19. Theliquid is fed into the whirling chamber 19 in twostreams tangential to the cross section of the chamber 19, one on each side of the said chamber 19, thereby causing a: thorough intermixture and vaporization of the liquid. The liquid therefore cannot remain dormant in the chamber 19 due to the whirling action of the streams of liquid forcedthru the passages 21. The whirling and atomized liquid under pressure, is then forcedout through the orifice 11 in the form of a finely divided spray. The conical recess 12 assists in the passing of the whirling liquid from the chamber-l9 into the orifice 11.

' The entire nozzle tip may be readily detached from theconduit 6 after the removal of the cap 27. Thenby removing the plug.

22 from the cup 8 the atomizer 17 is removed from said cup therewith. The set screw 23 is thus readily adjustable to any desired flow. The entire device is simple in structure, it forms a compact and efficient unit; is does not require any adjustment, therefore it readily lends itself to effective application for the purposes set forth. The device is also readily adapted for efficient manufacture. It con sistsmerely of a flanged'cup with an orifice at its closed end, a plug threaded the open end of the cup, the plug inturn carrying as an extension on its inner end, a hollow atomizer with tangential inlet passages spaced from the inner periphery of the cup; into the center of the plug is screwed the adjusting screw for the atomizer. ,The aforedescribed its wall to admit fuel into the said intake 7 chamber, :said atomizer having a whirling chamber therein in communication with the said orifice, and having passages thru the wall thereof to admit'liquid from the intake chamber tangentially into the whirling chamber; means secured to the open end of the cup to cover the same and to hold the atomizer in the cup; and attachment means on said cup whereby the cup is-attached to a conduit so that the apertures thereof communicate with the-interior of-the said-concluit. a

2. In a liquid atomizer a cup open at one end, a nozzle disc integrally formed on the other end of the cup to close the same, said disc having a discharge orifice therethru; means secured to the open end of'the cup to cover the same, an atomizer extending inwardly from said means intoabutment with the nozzle disc in spaced relation to the inner periphery of the cup to 1 form an intake chamber thereat, said cup havingan aperture thru'its wall to admit fuel into the said intake chamber, said atomizer liavingawhirling chamber therein 1n communlcation with the sald orifice, and having passages thru the wall thereof to admit liquid from the intake wardly from said means into abutment with the nozzle disc in spaced relation to the in ner periphery of the cup to form an intake chamber thereat, said cup having an aperture thru its wall to admit fuel into the said intake chamber, said atomizer having a whirling chamber therein in communication with the said orifice, and having passages thru the wall thereof to admit liquid from the intake chamber tangentially into the whirling chamber and an annular flange extending from the outside periphery of the cup to be secured to aconduit for the liquid so as to maintain the outer periphery of the cup in spaced relation to the inner periphery of the said conduit. H M V of the cup to form an intake chamber thereat (said cup having an intake aperture in the wall thereof capable of admitting liquid from the outside of the cup into said intake chamber, said atomizer having a whirling chamber therein in communication with the .said

discharge orifice and having a passage substantially tangential to the open end of the whirling chamber connecting the whirling chamber to the intake chamber.

5. In a liquid atomizer a nozzle cup; a nozzle disc forming a closed discharge end of the cup, said disc having a discharge orifice therethru, the other end of the cup being internally threaded; a plug secured into the interiorlythreaded end of the cup; an atomizer extending inwardly from the plug so as to be spaced from the inner periphery of the cup to form an intake chamber thereat, said cup having an intake aperture in the wall thereof capable of admitting liquid from the outside of the cup into said intake chamber, said atomizer havinga whirling chamber therein in communication with the said discharge orifice and having a passage substan-' ially tangential to the open end of the whirling chamber connecting the whirling chamher to the intake chamber; and a nozzle regulating element extending through the plug into the whirling chamber and being adjustable to cover the said tangential passages.

6. In a liquid atomizer a nozzle cup; a nozzle disc forming a closed discharge end of the cup, said disc having a discharge orifice therethru, the other end of the cup being internally threaded; a plug secured into the interiorly threaded end of the cup;

and an atomizer extending inwardly from the plugso as to be spaced from the inner periphery of the cup to form an intake chamber thereat, said cup having an intake aperture in the wall thereof capable ofradmitting liquid from the outside of the cup into said intake chamber, said atomizer 'hav-,

ing a whirling chamber therein in communication with the said discharge orifice and having a passage substantiallytangential to the open end of the whirling chamber connecting the whirling chamber to the intake chamber, the open end of said atomizer being held in abutment with the inner face of the nozzle disc at said orifice.

7. In a liquid atomizer a nozzle cup; a nozzle forming a closed discharge end of the cup, said disc having a discharge orifice therethru, the other end of'the cup being internally threaded; a plug secured into the interiorly threaded end of the cup; an

atomizer extending inwardly from the plug so as to be spaced from the inner periphery of the cup to .forman-inta'ke chamber there 7 at, saidc'up having an intake aperture in the wall thereof capable of'adinittingliquid from the outside of the cup'into said intake chamber, said atomizer having a whirling chamber therein in communication with the i said discharge orifice and having a passage substantially tangential to the open end of the whirling chamberconne'cting the whirling chamber to the intake chamber, the

open end of said atomizer being held in abutment with the innerface of the nozzle disc' at said orifice; a conduit for liquid being externally threaded onits free end; an an nular flange extending from the outer periphery of the cup to cover the end ofthe conduit; and a cap threadedon the end of the conduit to secure the flange in place so as to allow the communication of the liquid 7' from the conduit into said apertures.

' 8. In an atomizer for liquid under pressure, a nozzle disc secured to the end of a conduit, having an orifice therethru; a hollow hub extending from the disc into'the said conduit and being spaced from the walls of the conduit; means secured in the free end of said hub to cover the same; an atomizer extending from said means into the said hub, said atomizer having an outer periphery smaller than the inner periphery of'the hub to form an intake space adjacentthe inner periphery of the said hub; said hub having an intake aperture thru the wall thereof communicating with said intake space, and "said atomizer having passages through its wall connecting the intake space} with the atomizer chamber, said passagesbeing offset relatively to said intake aperture and'being adapted to discharge tangentially to the; cross section of the atomizer chamber; and an atomizer regulating element se cured in said securing means andextending' into said atomizer chamber and being adjustable relatively *tosaid passages to regulate the openings thereof.

9. In an atomizer for liquids under pressure, a nozzle disc secured to the end of a conduit and having an orifice therethru; a

hollow hub extending from the disc into the said conduit and being spaced from the in ner periphery of the conduit; a plug removatomizer body integral with the'plug and extending therefrom to the inner face of the disc at said orifice, said atomizer body being spaced from the inner periphery of the hub and having an'atomizer chamber therein communicating w th said orifice, said passagescut in the free end thereof tangen-i ably secured in the open end of the hub; an 1 0 tially to the atomizer chamber to connect the intake space to the atomizer chamber; a regulating member adjustably secured into the pluginaxial alignment with the nozzle chamber to extend intosaid chamber, said member being adjustable to cover the inner end of said tangential passages to regulate the intake flow therethrough.

1 In testimony whereof, I have hereunto set my hand at San Francisco, California,

this 3d day'of September 1930. V FRANK A. SCHNEIDER. 

